My Android app has an Undo button in the action bar:
Many users are confused between this Undo button and Android's hardware Back button (which exits the activity).
Even I sometimes press the wrong ...

Google often uses an undo system where an action is followed by a popup asking if you want to undo the latest action.
This is probably satisfying for the most of us - but how often do people regret ...

We are in the middle of an endless conversation* in the office :
Should undos have a timer before disappearance or should they be displayed until next action?
In our discussion, closing or changing ...

Imagine for the sake of simplicity I have a web app to-do list, where each item is a line and has a check mark near it. When the user clicks the check mark, the task is then "done" and the line fades ...

We're developing a plugin for some web-based application. Our plugin somehow enrich the functionality of the hosted application and uses some of the provided UI for certain functionality like adding ...

I am planning adding an undo/recover mechanism to an existing application, and I am looking for ideas hwo to present it to the user under pretty ugly restrictions. I've found a few particular hints, ...

The next release of our [edit: java] application will allow users to delete and redact text that they've selected, based on right clicking and choosing one of those options. Unfortunately, we haven't ...

Why do most applications have fairly limited 'undo' history functionality?
I've been caught out on multiple occasions (granted its technically my fault) where I've needed to undo a number of changes ...

In a sovereign desktop app with multi-level undo/redo (ie Photoshop, Word, etc), would being able to save and restore the undo history of a file with the file itself be a good thing or a bad thing? My ...